Help me soundblock for free!!

Honestly...I wouldn't waste your time on that task, as the reduction will be minimal.  You'll do better off cost wise, to rent a place to use your power tools, outside of your condo.  Not sure if an explanation is really needed, but I'm believing someone else will chime in and tell you and a more factual way.  
Or...use the tools when your neighbors are gone...IOW rearrange your schedule.  Sound isolation doesn't come cheap, nor use any of the items you listed above.  

Unfortunately the gents above are right.
Anyway, if you decide to try how far you can get with the job, my guess is that  the "particle board" you mentioned, if that is what I know as "chipwood", is your best bet. Forget  styrofoam. 
Layers of chipwood (or plaster plates) with maybe cardboard or rock wool between them, if you can get your hands on it? Tightly assembled, floor, ceiling, walls, as the noise finds the smallest holes. 
If you can build the structures thick enough, at least 6-8 inches, it will do something, but if it's enough...I can't tell.
With 8-10 inches of this chipwood and other stuff all around you may face some issues with electric or fire safety regulations, too, and perhaps you even need to count the sheer weight or the structures to avoid very unpleasant surprises.